how much your users benefit from this new class of web applications that manipulate the browser's DOM and communicate with the server to update the user's view of a page without waiting for the entire page to be refreshed. <br><br>Written by Microsoft's lead ASP.NET AJAX developer together with an in-the-field Microsoft MVP (Most Valuable Professional), this book guides you through the core of the Microsoft AJAX Library and the controls you will use to leverage AJAX. It provides you with code samples to take advantage of some of the popular shared-source ASP.NET AJAX Toolkit controls and extensions. And you'll work through debugging functionality in Visual Studio and the browser as well as methods for effective testing. <br><br>What you will learn from this book <br><br>How to create a better user experience by adding more dynamic UIs <br>Steps for accessing ASP.NET profile and authentication services <br>Ways to simplify programming tasks using the Microsoft AJAX Library <br>Strategies for testing web applications to achieve optimal performance <br>Methods for developing custom AJAX controls <br>Who this book is for <br><br>This book is for experienced ASP.NET developers who want to add AJAX to their applications. It is also for experienced web developers who want to move to ASP.NET and AJAX together.